<?php
    // +----------------------------------------------------------------------
    // | ThinkPHP [ WE CAN DO IT JUST THINK ]
    // +----------------------------------------------------------------------
    // | Copyright (c) 2006~2017 http://thinkphp.cn All rights reserved.
    // +----------------------------------------------------------------------
    // | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
    // +----------------------------------------------------------------------
    // | Author: liu21st <liu21st@gmail.com>
    // +----------------------------------------------------------------------
    namespace think;
    class Request {
        /**
         * @var object 对象实例
         */
        protected static $instance;
        protected static $hook = [];
        protected        $method;
        /**
         * @var string 域名（含协议和端口）
         */
        protected $domain;
        /**
         * @var string URL地址
         */
        protected $url;
        /**
         * @var string 基础URL
         */
        protected $baseUrl;
        /**
         * @var string 当前执行的文件
         */
        protected $baseFile;
        /**
         * @var string 访问的ROOT地址
         */
        protected $root;
        /**
         * @var string pathinfo
         */
        protected $pathinfo;
        /**
         * @var string pathinfo（不含后缀）
         */
        protected $path;
        /**
         * @var array 当前路由信息
         */
        protected $routeInfo = [];
        /**
         * @var array 当前调度信息
         */
        protected $dispatch = [];
        protected $module;
        protected $controller;
        // 当前语言集
        protected $action;
        protected $langset;
        /**
         * @var array 请求参数
         */
        protected $param   = [];
        protected $get     = [];
        protected $post    = [];
        protected $request = [];
        protected $route   = [];
        protected $put;
        protected $session = [];
        protected $file    = [];
        protected $cookie  = [];
        protected $server  = [];
        protected $header  = [];
        /**
         * @var array 资源类型
         */
        protected $mimeType = [
            'xml'   => 'application/xml,text/xml,application/x-xml',
            'json'  => 'application/json,text/x-json,application/jsonrequest,text/json',
            'js'    => 'text/javascript,application/javascript,application/x-javascript',
            'css'   => 'text/css',
            'rss'   => 'application/rss+xml',
            'yaml'  => 'application/x-yaml,text/yaml',
            'atom'  => 'application/atom+xml',
            'pdf'   => 'application/pdf',
            'text'  => 'text/plain',
            'image' => 'image/png,image/jpg,image/jpeg,image/pjpeg,image/gif,image/webp,image/*',
            'csv'   => 'text/csv',
            'html'  => 'text/html,application/xhtml+xml,*/*',
        ];
        // 全局过滤规则
        protected $content;
        // Hook扩展方法
        protected $filter;
        // 绑定的属性
        protected $bind = [];
        // php://input
        protected $input;
        // 请求缓存
        protected $cache;
        // 缓存是否检查
        protected $isCheckCache;

        /**
         * 构造函数
         * @access protected
         * @param array $options 参数
         */
        protected function __construct($options = []) {
            foreach ($options as $name => $item) {
                if (property_exists($this, $name)) {
                    $this->$name = $item;
                }
            }
            if (is_null($this->filter)) {
                $this->filter = Config::get('default_filter');
            }
            // 保存 php://input
            $this->input = file_get_contents('php://input');
        }

        /**
         * Hook 方法注入
         * @access public
         * @param string|array $method   方法名
         * @param mixed        $callback callable
         * @return void
         */
        public static function hook($method, $callback = null) {
            if (is_array($method)) {
                self::$hook = array_merge(self::$hook, $method);
            } else {
                self::$hook[$method] = $callback;
            }
        }

        /**
         * 初始化
         * @access public
         * @param array $options 参数
         * @return \think\Request
         */
        public static function instance($options = []) {
            if (is_null(self::$instance)) {
                self::$instance = new static($options);
            }
            return self::$instance;
        }

        /**
         * 创建一个URL请求
         * @access public
         * @param string $uri    URL地址
         * @param string $method 请求类型
         * @param array  $params 请求参数
         * @param array  $cookie
         * @param array  $files
         * @param array  $server
         * @param string $content
         * @return \think\Request
         */
        public static function create($uri, $method = 'GET', $params = [], $cookie = [], $files = [], $server = [], $content = null) {
            $server['PATH_INFO']      = '';
            $server['REQUEST_METHOD'] = strtoupper($method);
            $info                     = parse_url($uri);
            if (isset($info['host'])) {
                $server['SERVER_NAME'] = $info['host'];
                $server['HTTP_HOST']   = $info['host'];
            }
            if (isset($info['scheme'])) {
                if ('https' === $info['scheme']) {
                    $server['HTTPS']       = 'on';
                    $server['SERVER_PORT'] = 443;
                } else {
                    unset($server['HTTPS']);
                    $server['SERVER_PORT'] = 80;
                }
            }
            if (isset($info['port'])) {
                $server['SERVER_PORT'] = $info['port'];
                $server['HTTP_HOST']   = $server['HTTP_HOST'] . ':' . $info['port'];
            }
            if (isset($info['user'])) {
                $server['PHP_AUTH_USER'] = $info['user'];
            }
            if (isset($info['pass'])) {
                $server['PHP_AUTH_PW'] = $info['pass'];
            }
            if (!isset($info['path'])) {
                $info['path'] = '/';
            }
            $options                      = [];
            $options[strtolower($method)] = $params;
            $queryString                  = '';
            if (isset($info['query'])) {
                parse_str(html_entity_decode($info['query']), $query);
                if (!empty($params)) {
                    $params      = array_replace($query, $params);
                    $queryString = http_build_query($query, '', '&');
                } else {
                    $params      = $query;
                    $queryString = $info['query'];
                }
            } elseif (!empty($params)) {
                $queryString = http_build_query($params, '', '&');
            }
            if ($queryString) {
                parse_str($queryString, $get);
                $options['get'] = isset($options['get']) ? array_merge($get, $options['get']) : $get;
            }
            $server['REQUEST_URI']  = $info['path'] . ('' !== $queryString ? '?' . $queryString : '');
            $server['QUERY_STRING'] = $queryString;
            $options['cookie']      = $cookie;
            $options['param']       = $params;
            $options['file']        = $files;
            $options['server']      = $server;
            $options['url']         = $server['REQUEST_URI'];
            $options['baseUrl']     = $info['path'];
            $options['pathinfo']    = '/' == $info['path'] ? '/' : ltrim($info['path'], '/');
            $options['method']      = $server['REQUEST_METHOD'];
            $options['domain']      = isset($info['scheme']) ? $info['scheme'] . '://' . $server['HTTP_HOST'] : '';
            $options['content']     = $content;
            self::$instance         = new self($options);
            return self::$instance;
        }

        public function __call($method, $args) {
            if (array_key_exists($method, self::$hook)) {
                array_unshift($args, $this);
                return call_user_func_array(self::$hook[$method], $args);
            } else {
                throw new Exception('method not exists:' . __CLASS__ . '->' . $method);
            }
        }

        /**
         * 设置或获取当前URL 不含QUERY_STRING
         * @access public
         * @param string $url URL地址
         * @return string
         */
        public function baseUrl($url = null) {
            if (!is_null($url) && true !== $url) {
                $this->baseUrl = $url;
                return $this;
            } elseif (!$this->baseUrl) {
                $str           = $this->url();
                $this->baseUrl = strpos($str, '?') ? strstr($str, '?', true) : $str;
            }
            return true === $url ? $this->domain() . $this->baseUrl : $this->baseUrl;
        }

        /**
         * 设置或获取当前完整URL 包括QUERY_STRING
         * @access public
         * @param string|true $url URL地址 true 带域名获取
         * @return string
         */
        public function url($url = null) {
            if (!is_null($url) && true !== $url) {
                $this->url = $url;
                return $this;
            } elseif (!$this->url) {
                if (IS_CLI) {
                    $this->url = isset($_SERVER['argv'][1]) ? $_SERVER['argv'][1] : '';
                } elseif (isset($_SERVER['HTTP_X_REWRITE_URL'])) {
                    $this->url = $_SERVER['HTTP_X_REWRITE_URL'];
                } elseif (isset($_SERVER['REQUEST_URI'])) {
                    $this->url = $_SERVER['REQUEST_URI'];
                } elseif (isset($_SERVER['ORIG_PATH_INFO'])) {
                    $this->url = $_SERVER['ORIG_PATH_INFO'] . (!empty($_SERVER['QUERY_STRING']) ? '?' . $_SERVER['QUERY_STRING'] : '');
                } else {
                    $this->url = '';
                }
            }
            return true === $url ? $this->domain() . $this->url : $this->url;
        }

        /**
         * 设置或获取当前包含协议的域名
         * @access public
         * @param string $domain 域名
         * @return string
         */
        public function domain($domain = null) {
            if (!is_null($domain)) {
                $this->domain = $domain;
                return $this;
            } elseif (!$this->domain) {
                $this->domain = $this->scheme() . '://' . $this->host();
            }
            return $this->domain;
        }

        /**
         * 当前URL地址中的scheme参数
         * @access public
         * @return string
         */
        public function scheme() {
            return $this->isSsl() ? 'https' : 'http';
        }

        /**
         * 当前是否ssl
         * @access public
         * @return bool
         */
        public function isSsl() {
            $server = array_merge($_SERVER, $this->server);
            if (isset($server['HTTPS']) && ('1' == $server['HTTPS'] || 'on' == strtolower($server['HTTPS']))) {
                return true;
            } elseif (isset($server['REQUEST_SCHEME']) && 'https' == $server['REQUEST_SCHEME']) {
                return true;
            } elseif (isset($server['SERVER_PORT']) && ('443' == $server['SERVER_PORT'])) {
                return true;
            } elseif (isset($server['HTTP_X_FORWARDED_PROTO']) && 'https' == $server['HTTP_X_FORWARDED_PROTO']) {
                return true;
            }
            return false;
        }

        /**
         * 当前请求的host
         * @access public
         * @return string
         */
        public function host() {
            return $this->server('HTTP_HOST');
        }

        /**
         * 获取server参数
         * @access public
         * @param string|array $name    数据名称
         * @param string       $default 默认值
         * @param string|array $filter  过滤方法
         * @return mixed
         */
        public function server($name = '', $default = null, $filter = '') {
            if (empty($this->server)) {
                $this->server = $_SERVER;
            }
            if (is_array($name)) {
                return $this->server = array_merge($this->server, $name);
            }
            return $this->input($this->server, false === $name ? false : strtoupper($name), $default, $filter);
        }

        /**
         * 获取变量 支持过滤和默认值
         * @param array        $data    数据源
         * @param string|false $name    字段名
         * @param mixed        $default 默认值
         * @param string|array $filter  过滤函数
         * @return mixed
         */
        public function input($data = [], $name = '', $default = null, $filter = '') {
            if (false === $name) {
                // 获取原始数据
                return $data;
            }
            $name = (string)$name;
            if ('' != $name) {
                // 解析name
                if (strpos($name, '/')) {
                    list($name, $type) = explode('/', $name);
                } else {
                    $type = 's';
                }
                // 按.拆分成多维数组进行判断
                foreach (explode('.', $name) as $val) {
                    if (isset($data[$val])) {
                        $data = $data[$val];
                    } else {
                        // 无输入数据，返回默认值
                        return $default;
                    }
                }
                if (is_object($data)) {
                    return $data;
                }
            }
            // 解析过滤器
            $filter = $this->getFilter($filter, $default);
            if (is_array($data)) {
                array_walk_recursive($data, [
                    $this,
                    'filterValue'
                ], $filter
                );
                reset($data);
            } else {
                $this->filterValue($data, $name, $filter);
            }
            if (isset($type) && $data !== $default) {
                // 强制类型转换
                $this->typeCast($data, $type);
            }
            return $data;
        }

        protected function getFilter($filter, $default) {
            if (is_null($filter)) {
                $filter = [];
            } else {
                $filter = $filter ?: $this->filter;
                if (is_string($filter) && false === strpos($filter, '/')) {
                    $filter = explode(',', $filter);
                } else {
                    $filter = (array)$filter;
                }
            }
            $filter[] = $default;
            return $filter;
        }

        /**
         * 递归过滤给定的值
         * @param mixed $value   键值
         * @param mixed $key     键名
         * @param array $filters 过滤方法+默认值
         * @return mixed
         */
        private function filterValue(&$value, $key, $filters) {
            $default = array_pop($filters);
            foreach ($filters as $filter) {
                if (is_callable($filter)) {
                    // 调用函数或者方法过滤
                    $value = call_user_func($filter, $value);
                } elseif (is_scalar($value)) {
                    if (false !== strpos($filter, '/')) {
                        // 正则过滤
                        if (!preg_match($filter, $value)) {
                            // 匹配不成功返回默认值
                            $value = $default;
                            break;
                        }
                    } elseif (!empty($filter)) {
                        // filter函数不存在时, 则使用filter_var进行过滤
                        // filter为非整形值时, 调用filter_id取得过滤id
                        $value = filter_var($value, is_int($filter) ? $filter : filter_id($filter));
                        if (false === $value) {
                            $value = $default;
                            break;
                        }
                    }
                }
            }
            return $this->filterExp($value);
        }

        /**
         * 过滤表单中的表达式
         * @param string $value
         * @return void
         */
        public function filterExp(&$value) {
            // 过滤查询特殊字符
            if (is_string($value) && preg_match('/^(EXP|NEQ|GT|EGT|LT|ELT|OR|XOR|LIKE|NOTLIKE|NOT BETWEEN|NOTBETWEEN|BETWEEN|NOTIN|NOT IN|IN)$/i', $value)) {
                $value .= ' ';
            }
            // TODO 其他安全过滤
        }

        /**
         * 强制类型转换
         * @param string $data
         * @param string $type
         * @return mixed
         */
        private function typeCast(&$data, $type) {
            switch (strtolower($type)) {
                // 数组
                case 'a':
                    $data = (array)$data;
                    break;
                // 数字
                case 'd':
                    $data = (int)$data;
                    break;
                // 浮点
                case 'f':
                    $data = (float)$data;
                    break;
                // 布尔
                case 'b':
                    $data = (boolean)$data;
                    break;
                // 字符串
                case 's':
                default:
                    if (is_scalar($data)) {
                        $data = (string)$data;
                    } else {
                        throw new \InvalidArgumentException('variable type error：' . gettype($data));
                    }
            }
        }

        /**
         * 设置或获取URL访问根地址
         * @access public
         * @param string $url URL地址
         * @return string
         */
        public function root($url = null) {
            if (!is_null($url) && true !== $url) {
                $this->root = $url;
                return $this;
            } elseif (!$this->root) {
                $file = $this->baseFile();
                if ($file && 0 !== strpos($this->url(), $file)) {
                    $file = str_replace('\\', '/', dirname($file));
                }
                $this->root = rtrim($file, '/');
            }
            return true === $url ? $this->domain() . $this->root : $this->root;
        }

        /**
         * 设置或获取当前执行的文件 SCRIPT_NAME
         * @access public
         * @param string $file 当前执行的文件
         * @return string
         */
        public function baseFile($file = null) {
            if (!is_null($file) && true !== $file) {
                $this->baseFile = $file;
                return $this;
            } elseif (!$this->baseFile) {
                $url = '';
                if (!IS_CLI) {
                    $script_name = basename($_SERVER['SCRIPT_FILENAME']);
                    if (basename($_SERVER['SCRIPT_NAME']) === $script_name) {
                        $url = $_SERVER['SCRIPT_NAME'];
                    } elseif (basename($_SERVER['PHP_SELF']) === $script_name) {
                        $url = $_SERVER['PHP_SELF'];
                    } elseif (isset($_SERVER['ORIG_SCRIPT_NAME']) && basename($_SERVER['ORIG_SCRIPT_NAME']) === $script_name) {
                        $url = $_SERVER['ORIG_SCRIPT_NAME'];
                    } elseif (($pos = strpos($_SERVER['PHP_SELF'], '/' . $script_name)) !== false) {
                        $url = substr($_SERVER['SCRIPT_NAME'], 0, $pos) . '/' . $script_name;
                    } elseif (isset($_SERVER['DOCUMENT_ROOT']) && strpos($_SERVER['SCRIPT_FILENAME'], $_SERVER['DOCUMENT_ROOT']) === 0) {
                        $url = str_replace('\\', '/', str_replace($_SERVER['DOCUMENT_ROOT'], '', $_SERVER['SCRIPT_FILENAME']));
                    }
                }
                $this->baseFile = $url;
            }
            return true === $file ? $this->domain() . $this->baseFile : $this->baseFile;
        }

        /**
         * 获取当前请求URL的pathinfo信息(不含URL后缀)
         * @access public
         * @return string
         */
        public function path() {
            if (is_null($this->path)) {
                $suffix   = Config::get('url_html_suffix');
                $pathinfo = $this->pathinfo();
                if (false === $suffix) {
                    // 禁止伪静态访问
                    $this->path = $pathinfo;
                } elseif ($suffix) {
                    // 去除正常的URL后缀
                    $this->path = preg_replace('/\.(' . ltrim($suffix, '.') . ')$/i', '', $pathinfo);
                } else {
                    // 允许任何后缀访问
                    $this->path = preg_replace('/\.' . $this->ext() . '$/i', '', $pathinfo);
                }
            }
            return $this->path;
        }

        /**
         * 获取当前请求URL的pathinfo信息（含URL后缀）
         * @access public
         * @return string
         */
        public function pathinfo() {
            if (is_null($this->pathinfo)) {
                if (isset($_GET[Config::get('var_pathinfo')])) {
                    // 判断URL里面是否有兼容模式参数
                    $_SERVER['PATH_INFO'] = $_GET[Config::get('var_pathinfo')];
                    unset($_GET[Config::get('var_pathinfo')]);
                } elseif (IS_CLI) {
                    // CLI模式下 index.php module/controller/action/params/...
                    $_SERVER['PATH_INFO'] = isset($_SERVER['argv'][1]) ? $_SERVER['argv'][1] : '';
                }
                // 分析PATHINFO信息
                if (!isset($_SERVER['PATH_INFO'])) {
                    foreach (Config::get('pathinfo_fetch') as $type) {
                        if (!empty($_SERVER[$type])) {
                            $_SERVER['PATH_INFO'] = (0 === strpos($_SERVER[$type], $_SERVER['SCRIPT_NAME'])) ? substr($_SERVER[$type], strlen($_SERVER['SCRIPT_NAME'])) : $_SERVER[$type];
                            break;
                        }
                    }
                }
                $this->pathinfo = empty($_SERVER['PATH_INFO']) ? '/' : ltrim($_SERVER['PATH_INFO'], '/');
            }
            return $this->pathinfo;
        }

        /**
         * 当前URL的访问后缀
         * @access public
         * @return string
         */
        public function ext() {
            return pathinfo($this->pathinfo(), PATHINFO_EXTENSION);
        }

        /**
         * 获取当前请求的时间
         * @access public
         * @param bool $float 是否使用浮点类型
         * @return integer|float
         */
        public function time($float = false) {
            return $float ? $_SERVER['REQUEST_TIME_FLOAT'] : $_SERVER['REQUEST_TIME'];
        }

        /**
         * 当前请求的资源类型
         * @access public
         * @return false|string
         */
        public function type() {
            $accept = $this->server('HTTP_ACCEPT');
            if (empty($accept)) {
                return false;
            }
            foreach ($this->mimeType as $key => $val) {
                $array = explode(',', $val);
                foreach ($array as $k => $v) {
                    if (stristr($accept, $v)) {
                        return $key;
                    }
                }
            }
            return false;
        }

        /**
         * 设置资源类型
         * @access public
         * @param string|array $type 资源类型名
         * @param string       $val  资源类型
         * @return void
         */
        public function mimeType($type, $val = '') {
            if (is_array($type)) {
                $this->mimeType = array_merge($this->mimeType, $type);
            } else {
                $this->mimeType[$type] = $val;
            }
        }

        /**
         * 是否为POST请求
         * @access public
         * @return bool
         */
        public function isPost() {
            return $this->method() == 'POST';
        }

        /**
         * 当前的请求类型
         * @access public
         * @param bool $method true 获取原始请求类型
         * @return string
         */
        public function method($method = false) {
            if (true === $method) {
                // 获取原始请求类型
                return IS_CLI ? 'GET' : (isset($this->server['REQUEST_METHOD']) ? $this->server['REQUEST_METHOD'] : $_SERVER['REQUEST_METHOD']);
            } elseif (!$this->method) {
                if (isset($_POST[Config::get('var_method')])) {
                    $this->method = strtoupper($_POST[Config::get('var_method')]);
                    $this->{$this->method}($_POST);
                } elseif (isset($_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'])) {
                    $this->method = strtoupper($_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE']);
                } else {
                    $this->method = IS_CLI ? 'GET' : (isset($this->server['REQUEST_METHOD']) ? $this->server['REQUEST_METHOD'] : $_SERVER['REQUEST_METHOD']);
                }
            }
            return $this->method;
        }

        /**
         * 是否为PUT请求
         * @access public
         * @return bool
         */
        public function isPut() {
            return $this->method() == 'PUT';
        }

        /**
         * 是否为DELTE请求
         * @access public
         * @return bool
         */
        public function isDelete() {
            return $this->method() == 'DELETE';
        }

        /**
         * 是否为HEAD请求
         * @access public
         * @return bool
         */
        public function isHead() {
            return $this->method() == 'HEAD';
        }

        /**
         * 是否为PATCH请求
         * @access public
         * @return bool
         */
        public function isPatch() {
            return $this->method() == 'PATCH';
        }

        /**
         * 是否为OPTIONS请求
         * @access public
         * @return bool
         */
        public function isOptions() {
            return $this->method() == 'OPTIONS';
        }

        /**
         * 是否为cli
         * @access public
         * @return bool
         */
        public function isCli() {
            return PHP_SAPI == 'cli';
        }

        /**
         * 是否为cgi
         * @access public
         * @return bool
         */
        public function isCgi() {
            return strpos(PHP_SAPI, 'cgi') === 0;
        }

        /**
         * 设置获取获取DELETE参数
         * @access public
         * @param string|array $name    变量名
         * @param mixed        $default 默认值
         * @param string|array $filter  过滤方法
         * @return mixed
         */
        public function delete($name = '', $default = null, $filter = '') {
            return $this->put($name, $default, $filter);
        }

        /**
         * 设置获取获取PUT参数
         * @access public
         * @param string|array $name    变量名
         * @param mixed        $default 默认值
         * @param string|array $filter  过滤方法
         * @return mixed
         */
        public function put($name = '', $default = null, $filter = '') {
            if (is_null($this->put)) {
                $content = $this->input;
                if (false !== strpos($this->contentType(), 'application/json')) {
                    $this->put = (array)json_decode($content, true);
                } else {
                    parse_str($content, $this->put);
                }
            }
            if (is_array($name)) {
                $this->param = [];
                return $this->put = is_null($this->put) ? $name : array_merge($this->put, $name);
            }
            return $this->input($this->put, $name, $default, $filter);
        }

        /**
         * 当前请求 HTTP_CONTENT_TYPE
         * @access public
         * @return string
         */
        public function contentType() {
            $contentType = $this->server('CONTENT_TYPE');
            if ($contentType) {
                if (strpos($contentType, ';')) {
                    list($type) = explode(';', $contentType);
                } else {
                    $type = $contentType;
                }
                return trim($type);
            }
            return '';
        }

        /**
         * 设置获取获取PATCH参数
         * @access public
         * @param string|array $name    变量名
         * @param mixed        $default 默认值
         * @param string|array $filter  过滤方法
         * @return mixed
         */
        public function patch($name = '', $default = null, $filter = '') {
            return $this->put($name, $default, $filter);
        }

        /**
         * 获取request变量
         * @param string       $name    数据名称
         * @param string       $default 默认值
         * @param string|array $filter  过滤方法
         * @return mixed
         */
        public function request($name = '', $default = null, $filter = '') {
            if (empty($this->request)) {
                $this->request = $_REQUEST;
            }
            if (is_array($name)) {
                $this->param = [];
                return $this->request = array_merge($this->request, $name);
            }
            return $this->input($this->request, $name, $default, $filter);
        }

        /**
         * 获取session数据
         * @access public
         * @param string|array $name    数据名称
         * @param string       $default 默认值
         * @param string|array $filter  过滤方法
         * @return mixed
         */
        public function session($name = '', $default = null, $filter = '') {
            if (empty($this->session)) {
                $this->session = Session::get();
            }
            if (is_array($name)) {
                return $this->session = array_merge($this->session, $name);
            }
            return $this->input($this->session, $name, $default, $filter);
        }

        /**
         * 获取cookie参数
         * @access public
         * @param string|array $name    数据名称
         * @param string       $default 默认值
         * @param string|array $filter  过滤方法
         * @return mixed
         */
        public function cookie($name = '', $default = null, $filter = '') {
            if (empty($this->cookie)) {
                $this->cookie = Cookie::get();
            }
            if (is_array($name)) {
                return $this->cookie = array_merge($this->cookie, $name);
            } elseif (!empty($name)) {
                $data = Cookie::has($name) ? Cookie::get($name) : $default;
            } else {
                $data = $this->cookie;
            }
            // 解析过滤器
            $filter = $this->getFilter($filter, $default);
            if (is_array($data)) {
                array_walk_recursive($data, [
                    $this,
                    'filterValue'
                ], $filter
                );
                reset($data);
            } else {
                $this->filterValue($data, $name, $filter);
            }
            return $data;
        }

        /**
         * 获取环境变量
         * @param string|array $name    数据名称
         * @param string       $default 默认值
         * @param string|array $filter  过滤方法
         * @return mixed
         */
        public function env($name = '', $default = null, $filter = '') {
            if (empty($this->env)) {
                $this->env = $_ENV;
            }
            if (is_array($name)) {
                return $this->env = array_merge($this->env, $name);
            }
            return $this->input($this->env, false === $name ? false : strtoupper($name), $default, $filter);
        }

        /**
         * 设置或者获取当前的Header
         * @access public
         * @param string|array $name    header名称
         * @param string       $default 默认值
         * @return string
         */
        public function header($name = '', $default = null) {
            if (empty($this->header)) {
                $header = [];
                if (function_exists('apache_request_headers') && $result = apache_request_headers()) {
                    $header = $result;
                } else {
                    $server = $this->server ?: $_SERVER;
                    foreach ($server as $key => $val) {
                        if (0 === strpos($key, 'HTTP_')) {
                            $key          = str_replace('_', '-', strtolower(substr($key, 5)));
                            $header[$key] = $val;
                        }
                    }
                    if (isset($server['CONTENT_TYPE'])) {
                        $header['content-type'] = $server['CONTENT_TYPE'];
                    }
                    if (isset($server['CONTENT_LENGTH'])) {
                        $header['content-length'] = $server['CONTENT_LENGTH'];
                    }
                }
                $this->header = array_change_key_case($header);
            }
            if (is_array($name)) {
                return $this->header = array_merge($this->header, $name);
            }
            if ('' === $name) {
                return $this->header;
            }
            $name = str_replace('_', '-', strtolower($name));
            return isset($this->header[$name]) ? $this->header[$name] : $default;
        }

        /**
         * 设置或获取当前的过滤规则
         * @param mixed $filter 过滤规则
         * @return mixed
         */
        public function filter($filter = null) {
            if (is_null($filter)) {
                return $this->filter;
            } else {
                $this->filter = $filter;
            }
        }

        /**
         * 是否存在某个请求参数
         * @access public
         * @param string $name       变量名
         * @param string $type       变量类型
         * @param bool   $checkEmpty 是否检测空值
         * @return mixed
         */
        public function has($name, $type = 'param', $checkEmpty = false) {
            if (empty($this->$type)) {
                $param = $this->$type();
            } else {
                $param = $this->$type;
            }
            // 按.拆分成多维数组进行判断
            foreach (explode('.', $name) as $val) {
                if (isset($param[$val])) {
                    $param = $param[$val];
                } else {
                    return false;
                }
            }
            return ($checkEmpty && '' === $param) ? false : true;
        }

        /**
         * 获取指定的参数
         * @access public
         * @param string|array $name 变量名
         * @param string       $type 变量类型
         * @return mixed
         */
        public function only($name, $type = 'param') {
            $param = $this->$type();
            if (is_string($name)) {
                $name = explode(',', $name);
            }
            $item = [];
            foreach ($name as $key) {
                if (isset($param[$key])) {
                    $item[$key] = $param[$key];
                }
            }
            return $item;
        }

        /**
         * 排除指定参数获取
         * @access public
         * @param string|array $name 变量名
         * @param string       $type 变量类型
         * @return mixed
         */
        public function except($name, $type = 'param') {
            $param = $this->$type();
            if (is_string($name)) {
                $name = explode(',', $name);
            }
            foreach ($name as $key) {
                if (isset($param[$key])) {
                    unset($param[$key]);
                }
            }
            return $param;
        }

        /**
         * 当前是否Pjax请求
         * @access public
         * @param bool $pjax true 获取原始pjax请求
         * @return bool
         */
        public function isPjax($pjax = false) {
            $result = !is_null($this->server('HTTP_X_PJAX')) ? true : false;
            if (true === $pjax) {
                return $result;
            } else {
                return $this->param(Config::get('var_pjax')) ? true : $result;
            }
        }

        /**
         * 获取获取当前请求的参数
         * @access public
         * @param string|array $name    变量名
         * @param mixed        $default 默认值
         * @param string|array $filter  过滤方法
         * @return mixed
         */
        public function param($name = '', $default = null, $filter = '') {
            if (empty($this->param)) {
                $method = $this->method(true);
                // 自动获取请求变量
                switch ($method) {
                    case 'POST':
                        $vars = $this->post(false);
                        break;
                    case 'PUT':
                    case 'DELETE':
                    case 'PATCH':
                        $vars = $this->put(false);
                        break;
                    default:
                        $vars = [];
                }
                // 当前请求参数和URL地址中的参数合并
                $this->param = array_merge($this->get(false), $vars, $this->route(false));
            }
            if (true === $name) {
                // 获取包含文件上传信息的数组
                $file = $this->file();
                $data = is_array($file) ? array_merge($this->param, $file) : $this->param;
                return $this->input($data, '', $default, $filter);
            }
            return $this->input($this->param, $name, $default, $filter);
        }

        /**
         * 设置获取获取POST参数
         * @access public
         * @param string       $name    变量名
         * @param mixed        $default 默认值
         * @param string|array $filter  过滤方法
         * @return mixed
         */
        public function post($name = '', $default = null, $filter = '') {
            if (empty($this->post)) {
                $content = $this->input;
                if (empty($_POST) && false !== strpos($this->contentType(), 'application/json')) {
                    $this->post = (array)json_decode($content, true);
                } else {
                    $this->post = $_POST;
                }
            }
            if (is_array($name)) {
                $this->param = [];
                return $this->post = array_merge($this->post, $name);
            }
            return $this->input($this->post, $name, $default, $filter);
        }

        /**
         * 设置获取获取GET参数
         * @access public
         * @param string|array $name    变量名
         * @param mixed        $default 默认值
         * @param string|array $filter  过滤方法
         * @return mixed
         */
        public function get($name = '', $default = null, $filter = '') {
            if (empty($this->get)) {
                $this->get = $_GET;
            }
            if (is_array($name)) {
                $this->param = [];
                return $this->get = array_merge($this->get, $name);
            }
            return $this->input($this->get, $name, $default, $filter);
        }

        /**
         * 设置获取获取路由参数
         * @access public
         * @param string|array $name    变量名
         * @param mixed        $default 默认值
         * @param string|array $filter  过滤方法
         * @return mixed
         */
        public function route($name = '', $default = null, $filter = '') {
            if (is_array($name)) {
                $this->param = [];
                return $this->route = array_merge($this->route, $name);
            }
            return $this->input($this->route, $name, $default, $filter);
        }

        /**
         * 获取上传的文件信息
         * @access public
         * @param string|array $name 名称
         * @return null|array|\think\File
         */
        public function file($name = '') {
            if (empty($this->file)) {
                $this->file = isset($_FILES) ? $_FILES : [];
            }
            if (is_array($name)) {
                return $this->file = array_merge($this->file, $name);
            }
            $files = $this->file;
            if (!empty($files)) {
                // 处理上传文件
                $array = [];
                foreach ($files as $key => $file) {
                    if (is_array($file['name'])) {
                        $item  = [];
                        $keys  = array_keys($file);
                        $count = count($file['name']);
                        for ($i = 0; $i < $count; $i++) {
                            if (empty($file['tmp_name'][$i]) || !is_file($file['tmp_name'][$i])) {
                                continue;
                            }
                            $temp['key'] = $key;
                            foreach ($keys as $_key) {
                                $temp[$_key] = $file[$_key][$i];
                            }
                            $item[] = (new File($temp['tmp_name']))->setUploadInfo($temp);
                        }
                        $array[$key] = $item;
                    } else {
                        if ($file instanceof File) {
                            $array[$key] = $file;
                        } else {
                            if (empty($file['tmp_name']) || !is_file($file['tmp_name'])) {
                                continue;
                            }
                            $array[$key] = (new File($file['tmp_name']))->setUploadInfo($file);
                        }
                    }
                }
                if (strpos($name, '.')) {
                    list($name, $sub) = explode('.', $name);
                }
                if ('' === $name) {
                    // 获取全部文件
                    return $array;
                } elseif (isset($sub) && isset($array[$name][$sub])) {
                    return $array[$name][$sub];
                } elseif (isset($array[$name])) {
                    return $array[$name];
                }
            }
            return;
        }

        /**
         * 获取客户端IP地址
         * @param integer $type 返回类型 0 返回IP地址 1 返回IPV4地址数字
         * @param boolean $adv  是否进行高级模式获取（有可能被伪装）
         * @return mixed
         */
        public function ip($type = 0, $adv = false) {
            $type = $type ? 1 : 0;
            static $ip = null;
            if (null !== $ip) {
                return $ip[$type];
            }
            if ($adv) {
                if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
                    $arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
                    $pos = array_search('unknown', $arr);
                    if (false !== $pos) {
                        unset($arr[$pos]);
                    }
                    $ip = trim(current($arr));
                } elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
                    $ip = $_SERVER['HTTP_CLIENT_IP'];
                } elseif (isset($_SERVER['REMOTE_ADDR'])) {
                    $ip = $_SERVER['REMOTE_ADDR'];
                }
            } elseif (isset($_SERVER['REMOTE_ADDR'])) {
                $ip = $_SERVER['REMOTE_ADDR'];
            }
            // IP地址合法验证
            $long = sprintf("%u", ip2long($ip));
            $ip   = $long ? [
                $ip,
                $long
            ] : [
                '0.0.0.0',
                0
            ];
            return $ip[$type];
        }

        /**
         * 检测是否使用手机访问
         * @access public
         * @return bool
         */
        public function isMobile() {
            if (isset($_SERVER['HTTP_VIA']) && stristr($_SERVER['HTTP_VIA'], "wap")) {
                return true;
            } elseif (isset($_SERVER['HTTP_ACCEPT']) && strpos(strtoupper($_SERVER['HTTP_ACCEPT']), "VND.WAP.WML")) {
                return true;
            } elseif (isset($_SERVER['HTTP_X_WAP_PROFILE']) || isset($_SERVER['HTTP_PROFILE'])) {
                return true;
            } elseif (isset($_SERVER['HTTP_USER_AGENT']) && preg_match('/(blackberry|configuration\/cldc|hp |hp-|htc |htc_|htc-|iemobile|kindle|midp|mmp|motorola|mobile|nokia|opera mini|opera |Googlebot-Mobile|YahooSeeker\/M1A1-R2D2|android|iphone|ipod|mobi|palm|palmos|pocket|portalmmm|ppc;|smartphone|sonyericsson|sqh|spv|symbian|treo|up.browser|up.link|vodafone|windows ce|xda |xda_)/i', $_SERVER['HTTP_USER_AGENT'])) {
                return true;
            } else {
                return false;
            }
        }

        /**
         * 当前请求URL地址中的query参数
         * @access public
         * @return string
         */
        public function query() {
            return $this->server('QUERY_STRING');
        }

        /**
         * 当前请求URL地址中的port参数
         * @access public
         * @return integer
         */
        public function port() {
            return $this->server('SERVER_PORT');
        }

        /**
         * 当前请求 SERVER_PROTOCOL
         * @access public
         * @return integer
         */
        public function protocol() {
            return $this->server('SERVER_PROTOCOL');
        }

        /**
         * 当前请求 REMOTE_PORT
         * @access public
         * @return integer
         */
        public function remotePort() {
            return $this->server('REMOTE_PORT');
        }

        /**
         * 获取当前请求的路由信息
         * @access public
         * @param array $route 路由名称
         * @return array
         */
        public function routeInfo($route = []) {
            if (!empty($route)) {
                $this->routeInfo = $route;
            } else {
                return $this->routeInfo;
            }
        }

        /**
         * 设置或者获取当前请求的调度信息
         * @access public
         * @param array $dispatch 调度信息
         * @return array
         */
        public function dispatch($dispatch = null) {
            if (!is_null($dispatch)) {
                $this->dispatch = $dispatch;
            }
            return $this->dispatch;
        }

        /**
         * 设置或者获取当前的模块名
         * @access public
         * @param string $module 模块名
         * @return string|Request
         */
        public function module($module = null) {
            if (!is_null($module)) {
                $this->module = $module;
                return $this;
            } else {
                return $this->module ?: '';
            }
        }

        /**
         * 设置或者获取当前的控制器名
         * @access public
         * @param string $controller 控制器名
         * @return string|Request
         */
        public function controller($controller = null) {
            if (!is_null($controller)) {
                $this->controller = $controller;
                return $this;
            } else {
                return $this->controller ?: '';
            }
        }

        /**
         * 设置或者获取当前的操作名
         * @access public
         * @param string $action 操作名
         * @return string|Request
         */
        public function action($action = null) {
            if (!is_null($action)) {
                $this->action = $action;
                return $this;
            } else {
                return $this->action ?: '';
            }
        }

        /**
         * 设置或者获取当前的语言
         * @access public
         * @param string $lang 语言名
         * @return string|Request
         */
        public function langset($lang = null) {
            if (!is_null($lang)) {
                $this->langset = $lang;
                return $this;
            } else {
                return $this->langset ?: '';
            }
        }

        /**
         * 设置或者获取当前请求的content
         * @access public
         * @return string
         */
        public function getContent() {
            if (is_null($this->content)) {
                $this->content = $this->input;
            }
            return $this->content;
        }

        /**
         * 获取当前请求的php://input
         * @access public
         * @return string
         */
        public function getInput() {
            return $this->input;
        }

        /**
         * 生成请求令牌
         * @access public
         * @param string $name 令牌名称
         * @param mixed  $type 令牌生成方法
         * @return string
         */
        public function token($name = '__token__', $type = 'md5') {
            $type  = is_callable($type) ? $type : 'md5';
            $token = call_user_func($type, $_SERVER['REQUEST_TIME_FLOAT']);
            if ($this->isAjax()) {
                header($name . ': ' . $token);
            }
            Session::set($name, $token);
            return $token;
        }

        /**
         * 当前是否Ajax请求
         * @access public
         * @param bool $ajax true 获取原始ajax请求
         * @return bool
         */
        public function isAjax($ajax = false) {
            $value  = $this->server('HTTP_X_REQUESTED_WITH', '', 'strtolower');
            $result = ('xmlhttprequest' == $value) ? true : false;
            if (true === $ajax) {
                return $result;
            } else {
                return $this->param(Config::get('var_ajax')) ? true : $result;
            }
        }

        /**
         * 设置当前地址的请求缓存
         * @access public
         * @param string $key    缓存标识，支持变量规则 ，例如 item/:name/:id
         * @param mixed  $expire 缓存有效期
         * @param array  $except 缓存排除
         * @return void
         */
        public function cache($key, $expire = null, $except = []) {
            if (false !== $key && $this->isGet() && !$this->isCheckCache) {
                // 标记请求缓存检查
                $this->isCheckCache = true;
                if (false === $expire) {
                    // 关闭当前缓存
                    return;
                }
                if ($key instanceof \Closure) {
                    $key = call_user_func_array($key, [$this]);
                } elseif (true === $key) {
                    foreach ($except as $rule) {
                        if (0 === strpos($this->url(), $rule)) {
                            return;
                        }
                    }
                    // 自动缓存功能
                    $key = '__URL__';
                } elseif (strpos($key, '|')) {
                    list($key, $fun) = explode('|', $key);
                }
                // 特殊规则替换
                if (false !== strpos($key, '__')) {
                    $key = str_replace([
                                           '__MODULE__',
                                           '__CONTROLLER__',
                                           '__ACTION__',
                                           '__URL__',
                                           ''
                                       ], [
                                           $this->module,
                                           $this->controller,
                                           $this->action,
                                           md5($this->url(true))
                                       ], $key
                    );
                }
                if (false !== strpos($key, ':')) {
                    $param = $this->param();
                    foreach ($param as $item => $val) {
                        if (is_string($val) && false !== strpos($key, ':' . $item)) {
                            $key = str_replace(':' . $item, $val, $key);
                        }
                    }
                } elseif (strpos($key, ']')) {
                    if ('[' . $this->ext() . ']' == $key) {
                        // 缓存某个后缀的请求
                        $key = md5($this->url());
                    } else {
                        return;
                    }
                }
                if (isset($fun)) {
                    $key = $fun($key);
                }
                if (strtotime($this->server('HTTP_IF_MODIFIED_SINCE')) + $expire > $_SERVER['REQUEST_TIME']) {
                    // 读取缓存
                    $response = Response::create()->code(304);
                    throw new \think\exception\HttpResponseException($response);
                } elseif (Cache::has($key)) {
                    list($content, $header) = Cache::get($key);
                    $response = Response::create($content)->header($header);
                    throw new \think\exception\HttpResponseException($response);
                } else {
                    $this->cache = [
                        $key,
                        $expire
                    ];
                }
            }
        }

        /**
         * 是否为GET请求
         * @access public
         * @return bool
         */
        public function isGet() {
            return $this->method() == 'GET';
        }

        /**
         * 读取请求缓存设置
         * @access public
         * @return array
         */
        public function getCache() {
            return $this->cache;
        }

        /**
         * 设置当前请求绑定的对象实例
         * @access public
         * @param string $name 绑定的对象标识
         * @param mixed  $obj  绑定的对象实例
         * @return mixed
         */
        public function bind($name, $obj = null) {
            if (is_array($name)) {
                $this->bind = array_merge($this->bind, $name);
            } else {
                $this->bind[$name] = $obj;
            }
        }

        public function __get($name) {
            return isset($this->bind[$name]) ? $this->bind[$name] : null;
        }

        public function __set($name, $value) {
            $this->bind[$name] = $value;
        }

        public function __isset($name) {
            return isset($this->bind[$name]);
        }
    }
